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Finding the Fourth Proportional to 72,899.64, 100,572.30 and 44,556.12

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Solution

The fourth proportional to 72,899.64, 100,572.30 and 44,556.12 is: 61,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,899.64 : 100,572.30 = 44,556.12 : x
  2. Step 2: Convert to fraction form
    72,899.64/100,572.30 = 44,556.12/x
  3. Step 3: Cross multiply
    72,899.64x = 100,572.30 × 44,556.12
  4. Step 4: Simplify right side
    72,899.64x = 4,481,111,467.48
  5. Step 5: Solve for x
    x = 4,481,111,467.48/72,899.64
  6. Step 6: Final answer
    x = 61,469.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.